Share-based Compensation (Tables)

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement [Abstract]

Summary of Restricted Share Activity

A summary of non-vested restricted share activity as of September 30, 2021 and changes during the nine months then ended is as follows:

	Shares	Weighted-Average Grant Date Fair Value
Outstanding at January 1, 2021	370,027	$	44.22
Granted	159,382	$	54.97
Vested and issued	(142,705)	$	45.94
Expired or forfeited	(92,039)	$	44.41
Outstanding at September 30, 2021	294,665	$	49.15

Schedule of Performance Shares

A summary of non-vested performance share activity as of September 30, 2021 and changes during the nine months then ended is as follows:

	Shares	Weighted-Average Grant Date Fair Value
Outstanding at January 1, 2021	157,847	$	43.10
Granted	100,291	$	54.79
Vested and issued	(8,987)	$	44.49
Expired or forfeited	(45,768)	$	48.36
Outstanding at June 30, 2021	203,383	$	47.62